2010 Sonata
 

Hello all sorry to just pop in like this but I could really use some help. We have a 2010 Hyundai Sonata 2.4L GLS with 110k miles that has since we owned it had a slight jerk down shifting between 2nd and 3rd if the car shifts itself, if you manually shift it, it does not jerk. I am unsure if that's related to the issue we are currently having but it seemed worth mentioning. A few days ago we were out and the car suddenly just stopped going into drive. It does reverse, neutral, and park but when you put it into drive it just rolls backward like it's in neutral. we have replaced the neutral safety switch/transmission range switch and ensured the fluid was at the correct level. we also cleared the P0708 code that comes back almost immediately after we clear it. Any help would be greatly appreciated.